Mica cylinder for inverted gas-mantles.



A. P. STORES.

MIGA CYLINDER FOR INVERTED GAS MANTLES.

APPLICATION FILED D130 21, 1912.

1,081,343 Pateflted Dec. 16,1913.

1 "7""; L mm W" nesses Atforneys.

ni rrnn srii'i t t AARON P. STORES, OF OWEGO, NEW YORK,

Uldlt lCE.

ASSIGNOE T STORES MICA COMPANY, 01

OWEGO, NEW YORK, A GURI-OKEtA'JTJZON OF NEW YORK.

Specification ofiLetters Patent.

Patented Dec. 161, 1131.3.

Application filed December 21, 1912. Serial No. 737,92

Z'owlwm it may concern: V

lie it lillOWn that I, Annon 1. F 'ronns, a citizen oi. the Uuitcd States, a sident of (Negro, 'lioga county, State of New York, have invented :1 Certain new and useful. l 'licn Cylinder for Inverted Gas-lvlantles, .o't

- which the following is a specification.

, This invention relates to cylinders of mica for use \\ltl1.lIlYI't(l gas burners, utilizing --an incandescent mantle. .lnmy Patent No. 1,027,449, dated lilay 1312, I show such a cylinder, with a. mica bottom, and with openings in the-sides for the entrance of air to support combustion. 1

The present invention has for its object the production of a cylinder with means to prevent the fall of carbon, or broken portions of the mantle or mantle ring, which will not obstruct the light, which will be extremely durable, cheap to construct, and will keep out insects. These and further objects will appear from the following description and accompanying drawings, con-- sidered together or separately.

in the drawings, Figure 1 is along'itudinal sectional View of a cylinder embodying the invention, showing the mantle and mantle ring; Fig. 2 is a transverse section taken on the line 2 of Fig. 1, looking in the direction ot thenrrow; and Figs. 3 and i are vie s of details.

.lu all the riews like parts are designated by the same reference characters.

The rules cylinder 1 is preferably made of the shape shown. It is also conveniently made oi a plurality of sheets of mica, due to commercial conditions, under which sinile sheets oli sullicient size to make a cylinder are dillieult'to obtain. These. sheets are overlapped as shown, at the joints, and secured togel her by means oi. eyelets 2,-which Form convenient means of connection, and also a'll'ord ll. means for entrance of air. The top oi? the cylinder has the usual hand 3, attachcd in any suitable manner. This hand is connected to the mantle ring 4, by any suitable means, those illustrated, which form no part of the present invention, be ing similar to those disclosed in my copending application for patent, filed May 3, 1912, Serial No. 699,111. It is to he understood that any suitable means may be employed for supporting the cylinder from the mantle rirg, those shown being solely for the purposes of illustration. Within the cylinder is the usual incandescent mantle 5.

The bottom of the cylinder 1,'is provided with a metallic, annular nosing 6. may conveniently be made of tin. It is preferably made as shown, the metal being doubled upon itself to form a gutter 7, which pinches the lower edge of the mica sheets and securely holds the nosing" in places The ends of the nosing are joined by overlapping at 8. This joint may conveniently he made adjacent to one of the joints 0% the mica sheets as shown, which reduces the cost, as the nosing before. the ends are joined may be attached to the mics, and the ends connected by the same operation which joins the overlapping ends of the mica. To assist in. securing the nosing.

in place the lowermost eyelet 2 may also engage with the nosing as shown' Below the gutter 7 the nosing" is made in the shape of an annular flange 9, for supporting the bottom 10,

llhe bottom is made of gauze, preferably of metal woven wires. This bottom is circular in outline, and snugly fits within the nosing, resting upon and being supported by the Unique. The size oi? aperture oi the gauze is inunaterial. provided that it is not so line that it will exclude light, nor so course that it will not. properly intercept tolling pieces oi rarbon, or fragments of the mantle or ring. lt should be sufficiently line to proptmly exclude insects, and at the some time :uluiit air to support combustion. The 'tlllClUIllFS ol the wire should he sutlieieut lo prevent the egauze from being hroken by liaiulliue', and to support pieces oi carbon or mantle, or portions ol or the whole. of the mantle ring, in the event that the latter drops.

A very important feature of the invention lies in making); the bottom of such a shape that it is distorted beyond the plane of its periphery, in thedirection toward the mantle. in the embodiment chosen for illustration, it -is doi'ne-shapcd, as shown. This {greatly adds to its strength. It also adds to the security of connection of the gauze within the cylinder. Before the gauze can be ejected it must first become flattened, and the dis-sorted shape resists flattening. A. further advantage is that the gauze not readily expelled from the cylinder. This is because the nosing is of tired diameter;

This

in other words, is incapable of expansion, While the gauze, in order to be flattened, must necessarily increase in diameter, a condition which is resisted by the nosin Therefore, even if the comparatively heavy mantle ring dro is upon'the gauze, it will, under no circumstances, distort the bottom beyond the plane of its periphery in the direction away from the mantle, and thus drive it out of the cylinder, and consequently no hot or incandescent substances can fall out of the cylinder. Another advantage resides in the fact that, in use, the bottom requires absolutely no fastening means but is securely held in position by simply resting on the flange. In order to assist in holding the bottom in position, while handled, and to prevent it being forced upward, I provide lips 11. at intervals around the dance 9, such lips being conveniently made by two slits close together,

and bending: the material of the flange be- "4 l tween the slits, upward, as shown. The ends of one or two of the wires, which constitute the gauze, may be bent outward and mm c to rest beneath these lips, as shown, so that they will produce a locking inc-ans to prevent the gauze from being lifted from the flange.

I make no claim in this application to the cans for supporting the cylinder by the mantle rin uch means being specifically described and claimed in my cope-udmg apphcatmntor patent, above identified.

In accordance with the provisions of the. patent statutes, I have described the principle of my invention, together with the apparatus which. I now consider to represent the best embodiment thereof; but I desire to have it understood that the apparatus shown is merely illustrative, and that the invention may be carried. out in other ways.

menses Having now described my invention, what i claim as new and desire to secure by Letters ?atent, is

1. A cylinder for inverted incandescent burners, having walls of mica, a bottom of gauze, distorted inwardly beyond the plane of its periphery, in the direction toward the mantle, and means for preventing the perimeter of the gauze from increasing.

2. A cylinder for inverted incandescent burners, having walls of mica, with a metal annular nosing at the bottom, said nosing having afiange, and a circular gauze bottom, distortedinwardly beyond the plane of its periphery, in-the direction toward the mantle, resting upon the flange and bearing against the nosin 3'. A cylinder for inverted incandescent burners, comprising a body of mica, a metal nosing at the bottom with a gutter graspin; the nice, and an annular flange, with a lip or lips therein, and a bottom of wire gauze, convex in shape, resting upon the flange, and abutting against the nosing, with a wire or wires below each. lip, for retaining the gauzein position.

4. A cylinder for inverted incandescent burners, having walls ofrnica, a metal annular nosing at the bottom thereof inclosing the edge of the mica and having an inwardly extending flange, a circular gauze bottom distorted inwardly beyond the plane of its periphery, in the direction toward the man- 110, resting; on the flange and bearing against the nosin This specification signed and witnessed this 20th day of December, 1912,

AARON P. STORES.

ll itnesses A. E. BENTON, Jenn L. Lesson, 

